The shores of many of Switzerland's lakes fill up with bathers and sun-worshippers on warm summer days - some areas are endowed with small sandy beaches, others have grassy patches on which people spread out their towels. Often, there are wooden jetties leading out to slightly deeper parts of the lake; sometimes there are installations complete with diving boards.

People even go swimming in the Swiss capital, Bern, allowing themselves to be carried along by the river Aare - but making sure to get out before it flows over a weir.